Supervision of the country and city Government would be the correct answer to your question.
They all have ring-form composition and numerous divine interventions. The setting is about the same and talks about Greek mythology. The struggle is also the same in all of them: to rescue Helen, who is a Greek king from Troy. All of the stories are very similar.
"d. threats of violence against friends and/or family members to sway a citizen's vote" would violate the <span>notion of a fair and free election, since a person should be able to vote for whomever they wish. </span>
I would say d. division of the empire into 2 halves.